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IVT AE-X12FR-N, Service Manual, Page: 29 / 34

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IVT AE-X12FR-N Service Manual Download Page 29

GSXP12HRN

5 – 1

GSXP12HRN

Service Manual

 

CHAPTER 5. 

DISASSEMBLING PROCEDURE

[1] DISASSEMBLY OF INDOOR UNIT

CAUTION: DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY SERVICING.

1) Slide 2 Grille hooks to the left, and open the Grille. (Right and left

Grille.)

2) Remove 4 screws fixing the Girlls.

3) Remove the screw fixing the Side cover. (Right and left Side cover.)

4) Remove 2 screws fixing the Grille. (Right and left Grille.)

GRILLE HOOK

Slide

Side Cover

Side Cover

Front Panel

Summary of Contents for AE-X12FR-N

Page 1: ...CTION 2 7 CHAPTER 3 TROUBLESHOOTING 1 TROUBLESHOOTING GUIDE 3 1 2 THERMISTOR TEMPERATURE CHAR ACTERISTICS 3 5 3 HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY 3 5 CHAPTER 4 REFRIGERATION CYCLE 1 FLOW FOR REFRIGERANT 4 1 2 STANDARD CONDITION 4 1 3 TEMPERATURE AT EACH PART AND PRESSURE IN 3 WAY VALVE 4 1 4 PERFORMANCE CURVES 4 1 CHAPTER 5 DISASSEMBLING PROCEDURE 1 DISASSEMBLY OF INDOOR UNIT 5 1 2 DIS...

Page 2: ...tary type Model 5RS092XDF Oil charge RB68A or FREOL ALPHA68M 320ml Refrigerant system Evaporator Louver Fin and Grooved tube type Condenser Corrugate Fin and Grooved tube type Control Expansion valve Refrigerant R410A 1000g De lce system Micro computer controled reversed systems Noise level at cooling High dB A 43 49 Low dB A 35 Soft dB A 29 Fan system Drive Direct drive Air flow quantity at cooli...

Page 3: ... 1 GS XP12HR N AE X12FR N 1 1 Indoor unit 1 2 Outdoor unit CRMC A442JBE0 R03 AAA 2PCS SHARP CORPORATION INVERTER AIR CONDITIONER 22 0 58 18 5 175 250 680 1025 949 212 204 265 780 540 14 167 5 165 540 299 72 58 37 5 12 4 5 324 135 81 136 ...

Page 4: ...rainage pipe Ø 80mm Hole for refrigerant and drainage pipe Ø 80mm Horizontal base line Air outlet bolt pich VIEW FROM FRONT VIEW FROM CEILING 680 220 110 141 156 212 250 1025 398 419 949 400 VIEW FROM TOP unit size unit size unit size Hole for drainage pipe Ø 50mm Hole for refrigerant and drainage pipe Ø 80mm Hole for refrigerant and drainage pipe Ø 80mm Horizontal base line Air outlet bolt pich L...

Page 5: ...1 GS XP12HR N 2 Outdoor Unit 2 1 AE X12FR N DESCRIPTION MODEL REMARKS Indoor fan motor MLB052 220 240V 50Hz Indoor fan motor capacitor 450V 3µF Transformer Primary AC 220 240V 50Hz Secondary AC19V 50Hz FUSE1 QFS GA062JBZZ 250V 3 15A FUSE2 QFS GA064JBZZ 250V 1A DESCRIPTION MODEL REMARKS Compressor 5RS92XDF D C brush less motor ...

Page 6: ...2HRN 1 5 Outdoor fan motor ML A902 DC Motor Fu4 QFS GA064JBZZ 250V 1A Fu3 QFS GA051JBE0 250V 2A Fu2 QFS GA052JBZZ 250V 3 15A Fu1 QFS CA001JBZZ 250V 20A Fu5 6 QFS CA002JBZZ 250V 15A DESCRIPTION MODEL REMARKS ...

Page 7: ...tchover circuit Serial I O circuit Compressor relay drive circuit LED drive circuit Auto restart circuit Test run circuit Auxiliary mode Power on circuit Cluster generator drive circuit Cluster generator sensor circuit Room fan motor Fan motor pulse detect Flow direction control Wireless remote control operation Audible operation confirmation Room temp thermistor Heat exchanger pipe thermistor Mod...

Page 8: ...drive circuit Serial I O circuit CPU reset circuit Position detection circuit AC overcurrent detection circuit Compressor thermo circuit Heat exchanger pipe thermo circuit Outdoor temp thermo circuit LED drive circuit Test mode circuit Power factor converter circuit Filter circuit Smoothing circuit Pulse amplitube modulation circuit EEPROM AC clock circuit DC overcurrent detection circuit IGBT Uni...

Page 9: ...11 R12 2W 2 1 3 50V PC853H PC817X3 2 7K R40 R36 NF301 C71 0 01μ D8 47μ 1μ C21 2W 2W 2 4 7K ZD1 R86 R85 R83 C40 R89 R106 C45 C44 C43 C42 R88 C41 C47 R92 R93 R94 R95 R96 R97 502 C501 C502 R501 R502 LED503 CN501 R103 R102 R101 C53 C52 C51 R100 10K R99 R98 R104 C50 C49 C48 R105 C56 C57 C58 C59 Q2 R20 RY5 Q3 C19 R21 R22 R23 R24 R46 R47 R45 R44 R43 D13 R32 R33 D15 C26 C25 C27 R37 R38 R39 R58 Q10 D12 10K...

Page 10: ...TION from FAN MOTOR from CLUSTER UNIT LEFT from FAN MOTOR to LOUVER M from PIPE THERMISTOR from ROOM THERMISTOR to CONTROL BOX to L OF TB1 to 2 OF TB2 to FAN M CAPACITOR to N OF TB1 to 1 OF TB2 from L OF TB1 from DRAIN PUMP OPTION GREEN CONNECTOR or SHORTEN CIRCUIT ATACHMENT ...

Page 11: ...4 3 3K D1 0 1μ C13 1K 2W 2W 1K 1K 2W 4700P 250V C12 420V 420V 3 15A 250V R101 R102 R103 R104 1 2W 47K x 2 R101 102 1W 47K x 2 R103 104 T10 T11 PC81716NIP 5V 0V R55 R56 R54 C60 0 1μ 25V R99 100 0 1μ C86 15K R112 C61 50V 330P 330P 50V C62 R57 100 R58 100 R59 100 C63 330P 50V 12 6 7 8 9 10 0 1μ C64 25V 11 4 3 5 IC8 KIA339 1 5V 0V 0 01μ C97 U V N W 5V 0V C88 1000P N 1K R116 RY1 120 1 2W 0 033μ NR2 275...

Page 12: ...GSXP12HRN 2 6 2 2 Printed Wiring Board ...

Page 13: ...tely 0 C for 4 minutes during cooling or dry this control stops the compressor Over 2 C the compressor will run again 1 4 2 Heating Control for cold air blowing prevention When heating begins this control stops the indoor fan until the tem perature of the indoor heat exchanger reaches 23 C It also stops the fan if the temperature goes below 21 C during operation 1 5 Automatic operation The operati...

Page 14: ...opped and the emergency operation button is pressed down for 5 seconds or more the self diagnosis memory can be recalled 2 Details of self diagnosis error mode are informed by the flashing number as well as the lighting pattern of the operation lamp which flashes with the timer lamp For details refer to Error diagnostic method 1 14 Compressor relay 1 It is ON during operation and when operation is...

Page 15: ...f the outdoor unit heat exchanger exceeds the out door unit heat exchanger overheat protection temperature for 120 sec outdoor temperature 40 C 60 sec outdoor temperature 40 C at minimum operating frequency the compressor stops operating and then restarts after about 180 seconds and the abovementioned con trol is repeated 2 4 Compressor overheat prevention control If the temperature of the compres...

Page 16: ... PAM Pulse Amplitude Modulation The PAM circuit varies the compressor drive voltage and controls the rotation speed of the compressor The IGBT shown in the block diagram charges the energy electromotive force generated by the reactor to the electrolytic capacitor for the inverter by turning ON and OFF 1 3 12V SSR C23 RE RH R20 IC6 AC230V Microcomputer output 1 5 3 6 Cluster unit R23 R75 R76 PAM dr...

Page 17: ...rease of the compressor power supply voltage DC voltage to improve the compressor efficiency and maintain a high power factor by keeping the current phase closer to that of the supply voltage 4 2 1 Detailed explanation of PAM drive circuit sequence 4 2 2 AC clock zero cross judgment The clock circuit determines the time from one rising point of the clock waveform to the next rising point The detec...

Page 18: ...r 1 An error signal is sent to the indoor unit as soon as an error is generated Malfunction No 14 0 is indicated when the error code is called out by the indoor unit s self diagnosis function The LED on the outdoor unit flashes 14 times when an error is generated The LED continues flashing in the 14 time cycle even after the compressor stops operating The LED turns off data is deleted from the mem...

Page 19: ...upper phase IC the microcomputer IC1 turns ON the lower phase IGBT LU LV LW This results in a charging current that flows to the electrolytic capacitor of each upper phase IC input and charges the bootstrap capacitor with a 15 V current The power supply for the subsequent stages is charged while the lower phase IGBT is ON in ordinary compressor drive control P Vcc U V W VD VDB VCIN n N side IGBT N...

Page 20: ... adjusts the rate of acceleration deceleration accordingly The motor s induced voltage waveform is input to the comparator in the form of PWM switched pulse waveform and a position detection signal is generated as a reference voltage equaling 1 2 of 280 VDC However since there is no induced voltage waveform when the PWM waveform is OFF the microcomputer performs internal processing so that detecti...

Page 21: ... voltage is low position detection is still possible thus allowing sensor less operation at low rotation speed in the ini tial stage of operation This reduces the starting current and improves the IPM reliability Comparator output waveform Position signal waveform Terminal voltage waveform Reference voltage 1 2 of DC voltage Spike voltage cancelled ...

Page 22: ...t the time of timer lamp lighting Off for 5 seconds Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Operation lamp RED Cluster lamp BLUE Flashes in 2 se...

Page 23: ...nt transformer of the outdoor unit control PCB 2 Check if the refrigerant volume is abnormally low 3 Check if the refrigerant flows properly 1 Replace the outdoor unit control PCB assembly 2 Charge the specified amount of refrigerant 3 Correct refrigerant clogs 2 way valve 3 way valve pipe expansion valve 1 Check to make sure outdoor unit thermistor TH2 heat exchanger TH5 2 way valve are installed...

Page 24: ...or Indoor outdoor units in complete shutdown Indoor unit fan 1 Check the indoor fan motor for proper rotating operation Check fan lock 2 Check the lead wire of the indoor fan motor for open circuit 3 Check CN1 of the indoor unit fan motor for secure installation 4 No abnormality found in above inspections 1 through 3 1 Replace the indoor fan motor 2 Replace the indoor fan motor 3 Correct the insta...

Page 25: ...s or contacting a pipe a high voltage can flow and destroy the circuits To prevent these problems carefully conduct assembly work 3 DIODE BRIDGE CHECK METHOD Turn off the power and let the inverter electrolytic capacitor C9 C10 discharge completely Then use a tester and check continuity When using a digital tester the and tester lead wires in the table must be reversed 320 VDC line 0 V line 0 V li...

Page 26: ... Temperature ºC Tester Resistance 0ºC resistance 14 5 K 25ºC resistance 4 431 K TH2 TH5 500K 400K 300K 200K 100K 0 20 0 20 60 80 100 120 Tester 1 10 Connector CN8 Resistance at 25 52 76 k 5 8K 40K 30K 20K 0 10K 20 0 20 60 40 3 06K 4 17K 1 72K 2 28K Tester In case of TH2 heat exchanger thermistor 1 10 Connector CN8 Thermistor Compressor thermistor Heat exchanger thermistor Outdoor air temperature t...

Page 27: ...V 50Hz Indoor side Outdoor side Dry bulb Temp Relative Humidity Dry bulb Temp Relative Humidity Cooling 27 C 47 35 C 40 Heating 20 C 7 C 87 Model GS XP12HR N Operation mode MAX TEST RUN Cool Heat Cool Heat No R P M 5000 5600 2500 2500 1 73 6 C 70 4 C 68 C 55 C 2 41 C 2 C 38 C 3 C 3 14 C 34 C 16 C 27 C 4 15 C 1 C 17 C 4 C 3 way valve pres sure MPaG 0 81 2 72 1 03 1 93 Strainer s 1 4 C 2 Accumulator...

Page 28: ...25 30 35 40 3 3 3 5 3 7 3 9 3 1 16 12 14 800 900 1000 700 Cooling capacity kW Outside air temp ºC Input W Outlet air temp ºC 5 0 5 7 10 3 0 3 5 4 0 4 5 35 37 39 1000 1100 800 900 Heating capacity kW Outside air temp ºC Input W Outlet air temp ºC ...

Page 29: ...T FROM POWER SUPPLY BEFORE ANY SERVICING 1 Slide 2 Grille hooks to the left and open the Grille Right and left Grille 2 Remove 4 screws fixing the Girlls 3 Remove the screw fixing the Side cover Right and left Side cover 4 Remove 2 screws fixing the Grille Right and left Grille GRILLE HOOK Slide Side Cover Side Cover Front Panel ...

Page 30: ...GSXP12HRN 5 2 5 Remove 1 screw fixing the Angle Remove the Angle to the direction of arrows 6 Cut the fixing band Disconnect 2 connectors CN202 CN203 Remove the screw fixing the Display unit ...

Page 31: ... 2 screws fixing the Angle to the Front panel 9 Remove 8 screws fixing the Front panel 10 Support the Front panel with your hand and remove the screw 11 Remove the Front panel to the position where the Front panel is separated from the Drain pan Slide DRAIN PAN This position ...

Page 32: ...he Front panel and the Drain pan in these positions CAUTION WHEN YOU ASSEMBLE THE FRONT PANEL TO DRAIN PAN INSERT HOOK OF THE FRONT PANEL BETWEEN ANGLE AND DRAIN PAN 2 POSI TIONS ACTUALLY ASSEMBLE THE FRONT PANEL TO THE DRAIN PAN AFTER FIXING THE DISPLAY HOLDER TO THE FRONT PANEL CAUTION DISCHARGE THE WATER IN THE DRAIN PAN ASS Y BEFORE REMOVING THE DRAIN PAN ASS Y HOOK OF FRONT PANEL DRAIN PAN AN...

Page 33: ...ulators and 4 screws fixing the Drain pan ass y 16 Tilt the Drain pan ass y slide the Drain pan ass y to the direction of arrow 17 Disconnect 4 connectors CN206 CN207 CN208 and CN210 Remove 2 screws fixing the Top duct cover R Right and left side Right and left side Insulator ...

Page 34: ...ve 2 screws fixing the top duct 20 Tilt the Top duct for removing the rib of the Top duct remove the unit to the direction of arrow 21 Remove 2 screws fixing the Top duct cover R Remove the Top duct cover R and H louver ass y 22 Remove 6 screws fixing the End plate sub H louver ass y Top duct cover R ...

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